******************************************************************
*                                                                 *
*         ac-codes.txt      Analysis Center codes                 *
*                                                                 *
*******************************************************************
*
* This file is ac-codes.txt in https://cddis.gsfc.nasa.gov/archive/vlbi/ivscontrol.
* Copies are available at the other two IVS data centers.
*
* This file contains the list of IVS Analysis Center names, codes
* and solution codes. The codes are used in file naming conventions 
* for IVS analysis products.
*
* This file is maintained by the IVS Analysis Coordinator. Send 
* corrections to ivscc@lists.nasa.gov.
*
* Last updated:
* 990514 nrv Initial version
* 990729 nrv Added "type" field.
* 000204 nrv Added SPUB code.
* 000308 nrv Added RA99 codes for all existing ACs and one for FFI.
* 000313 nrv Add 0001 to list of SPUB solutions. 
* 000315 nrv Add SHAO to the RA99 list.
* 000402 nrv Add IAA1, IAA2, IAA3 for IAA's RA99 solutions.
* 000405 nrv Add BKGT for RA99 solutions.
* 000619 nrv Add SPBU EOPS code.
* 001006 nrv Add GSFC code 000a.
* 001109 nrv Change to 3-letter codes for Analysis Centers, and
*            5-letter codes for solutions.
* 001114 nrv Change SPB to SPU (incorrectly modified).
* 001115 nrv Change IAA solution code to O9907. Add I0011 code
*            for IAA intensive solution.
* 001117 nrv Add int01 for GSFC intensive, 2000b for GSFC TRF,
*            remove 1122.
* 001120 nrv Add pp2000 code for EOP comparison pilot project.
* 001206 nrv Add OSO to codes for pilot project.
* 001206 nrv Add BKG INT01 to solution list.
* 010104 nrv Add JPL to Pilot Project.
* 010108 nrv Add IA1 and IA2 to Pilot Project for IAA.
* 010109 nrv Add DG1 and DG2 to Pilot Project for DGFI.
* 010112 nrv Add ON2 for Onsala and CGS for Matera
* 010305 nrv Add gsf2001a and gsfint02 for GSFC.
* 010309 nrv Add ra00 for IERS 2000 solutions.
* 010322 nrv Add bkg00002 for EOPS solutions.
* 010424 nrv Add gsf2001b for EOPS, CRF, TRF for GSFC.
* 010427 nrv Add iaai0104 for IAA EOPI solution.
* 010509 nrv Add ivs01001 for the combined EOPS solution.
* 010604 nrv Add iaao0106 for EOPS series.
* 010612 nrv Add spu00002 for EOPS and EOPI.
* 010705 nrv Add pp01 for pilot2001.
* 010706 nrv Add int03, int04 and 2001c, 2001d for GSFC.
* 010716 nrv Add aus00001.eops and aus00001.eopi for AUSLIG.
* 011211 nrv Add bkgint02.eopi and bkg00003.eops for BKG.
* 011212 nrv Add usn2001d.eops for USNO.
* 020117 nrv Add iaao0201.eops, iaai0201.eopi for IAA.
* 020123 nrv Add 2002a and 2002b for BKG.
* 020329 nrv Add ivs02001 for combined solution.
* 020408 nrv Add usn2002a.eops for USNO.
* 020412 nrv Add bkg2002b for CRF solutions for BKG.
* 020412 nrv Add ra01 for IERS 2001 solutions.
* 020605 nrv Add 2002b and int05 for GSFC.
* 020607 nrv Add d0001 for daily sinex (SNX) type for GSFC.
* 020730 nrv Change daily sinex type to DSNX. 
* 020806 nrv Add ivs02002 for the new combined EOPS solution.
* 021001 nrv Add 2002c and int06 for GSFC.
* 021021 nrv Add codes for CGS Matera.      
* 021115 nrv Add 2002c for USNO.
* 021202 nrv Change IVS codes to ivs02r01 and ivs02q03.
* 030103 nrv Change IVS codes for old/new pole, examples: ivs02r1e and ivs03q1x.
* 030108 nrv Add OSO to TRO.
* 030108 nrv Add gsf2003a, gsfint07, gsfd0002 for GSFC.
* 030113 nrv Add 0301 for IAA.
* 030114 nrv Add 00004 for BKG EOPS.
* 030124 nrv Add INT03 for GIUB EOPI.
* 030203 nrv Add AUS00002.
* 030303 nrv Add spu0002i.eops IAU1980 and spu0002m.eops for MBH2000.
* 030316 nrv Add gsf2003b, gsfint08 for GSFC.
* 030519 nrv Add 2003a EOPS for USNO.
* 030630 nrv Add 2003c and int09 for GSFC.
* 030630 nrv Add 2003c, 00005, INT03 for BKG.
* 030707 nrv Add iaao0307 and iaai0307.
* 030707 nrv Add AUS2003a for CRF.
* 030721 nrv Add new codes for IVS.
* 030821 nrv Add spu0003i.
* 031008 nrv Add new codes for BKG
* 031103 nrv Add SNX code for BKG.
* 031112 nrv Add section for Pilot Project Baselines. Add IAA code.
* 031112 nrv Add EOPS, CRF, TRF for MAO 2003a and 2003o.
* 031112 nrv Add AUS codes for 2003b.
* 031113 nrv Add 2003b EOPS for USNO.
* 031230 nrv Corrected IAA Pilot Project code to iaao.
* 040128 nrv Add 2004a for BKG.
* 040130 nrv Add 00001 code for IGG for baseline PP.
* 040303 nrv Add usno2004a for USNO for DSNX.
* 040308 nrv Add 2004a for CGS, also d0001 for their DSNX.
* 040312 nrv Add 2004a for GSF.
* 040317 nrv Add 04Q1E 04Q1X 04Q2e 04Q2X 04Q3E 04Q3X 04Q4E 04Q4X for IVS.
* 040318 nrv Add d0001 for IVS.
* 040322 nrv Add 2004b and INT10 for GSF.
* 040412 nrv Remove old solution codes to shorten lines.
* 040413 nrv Add 2004b for GKB TRF and CRF.
* 040525 nrv Add IAO for IAA tropospheric submissions from Occam.
* 040525 nrv Add 2004a for USNO EOPS solution.
* 040526 nrv Change DSNX code for USNO to d0001.
* 040602 nrv  Add 00003 for AUS.
* 040706 nrv Add 2004c for BKG.
* 040804 nrv Add MAO to TROP.
* 040823 nrv Add aus2004a for CRF.
* 040913 nrv Add aus00004 for EOPS.
* 041012 nrv Add usn2004b for USNO EOPS.
* 041014 nrv Add gsf2004d for GSFC EOPS, TRF. Add int12 for EOPI.
* 041021 nrv Add DSNX code for DGFI d0001.
* 041027 nrv Add O0411 for IAA EOPS and EOPI.
* 041029 nrv Add 2004e for GSFC.
* 041213 dbb Add 00007 and INT04 for GIUB-BKG.
* 041215 dbb Add d0002 for GIUB-BKG daily sinex.
* 041216 dbb Add long-term troposphere product
* 050104 dbb Add aus2005a for CRF.
* 050109 dbb Add gsf2005a and gsfint13 for GSFC.
* 050111 dbb Add gsf2005b and gsfint14 for GSFC.
* 050117 dbb Add d04it for IVS daily sinex.
* 050125 dbb Add 2005a for IAO TRL.
* 050125 dbb Add 00007 for BKG TRL.
* 050210 dbb Add 2005a for GSF TRL.
* 050210 dbb Add DSNX code for DGFI d0002.
* 050217 dbb Add next ICRF determination project.
* 050218 dbb Add ts01a and ts02a for DGF for next ICRF project.
* 050222 dbb Add DSNX code for MAO 05it1.
* 050222 dbb Add 2005a for MAO TRL.
* 050224 dbb Add 2005a for BKG TRF and CRF.
* 050311 dbb Add o0411 code for IAA for baseline PP.
* 050313 dbb Add ts02a for SHA for next ICRF project.
* 050314 dbb Add 2005a for USNO EOPS.
* 050314 dbb Add d04it for USNO DSNX.
* 050318 dbb Add 2005a for CNR TRL.
* 050324 dbb Add d04it for SHA DSNX.
* 050331 dbb Add d04it for GSF DSNX.
* 050430 dbb Add d04it for AUS DSNX.
* 050620 dbb Add 05Q2E and 05Q3X for IVS quarterly solutions (EOPS).
* 050622 dbb Add 2005B for TRF and CRF for BKG.
* 050630 dbb Add aus2005a for CRF.
* 050713 dbb Add 2005a for CGS EOPS, TRF, and CRF.
* 050713 dbb Add usn2005b for USNO EOPS.
* 050913 dbb Add 05Q3E and 05Q3X for IVS quarterly solutions (EOPS).
* 050930 dbb Add 2005a for IAA EOPS, BL, and TRL.
* 051004 dbb Add 2005a for IAA EOPI.
* 051013 dbb Add aus00005 for EOPS.
* 051023 dbb Add 2005c and 2005d for GSF EOPS, TRF, and CRF.
* 051023 dbb Add int15 and int16 for GSF EOPI.
* 051023 dbb Add d0003 and d0004 for GSF DSNX.
* 051027 dbb Add usn2005c for USNO EOPS.
* 051107 dbb Add usn2005c for USNO EOPI.
* 051111 dbb Add 2005c for BKG TRF and CRF.
* 051121 dbb Add 2005e for GSF EOPS.
* 051213 dbb Add 05Q4E and 05Q4X for IVS quarterly solutions (EOPS).
* 051219 dbb Add aus2005c for CRF.
* 060206 dbb Add d05it for USNO DSNX.
* 060301 dbb Add 2006a for IGG long-term troposphere.
* 060301 dbb Add 2006a for IGG Pilot Project Baselines.
* 060302 dbb Add 2006a for BKG TRF and CRF.
* 060306 dbb Add usn2006a for USNO EOPS.
* 060307 dbb Add usn2006a for USNO EOPI.
* 060314 dbb Add 06Q1E and 06Q1X for IVS quarterly solutions (EOPS).
* 060413 dbb Add 2006a for IAA TRF and CRF.
* 060417 dbb Add aus00006 for EOPS.
* 060518 dbb Add 2005a for IVS combined long-term troposphere.
* 060602 dbb Add int17 for GSF EOPI.
* 060602 dbb Add 2006a, 2006b, 2006c, and 2006d for GSF EOPS and TRF.
* 060616 dbb Add 06q2e and 06q2X for IVS quarterly solutions (EOPS).
* 060626 dbb Add M3r1e and M3r1X for IVS quarterly solutions (EOPS).
* 060626 dbb Add M6Q2e and M6Q2X for IVS quarterly solutions (EOPS).
* 060627 dbb Add usn2006b for USNO EOPS and EOPI.
* 060717 dbb Add 2006b for BKG TRF and CRF.
* 060719 dbb Add 2006b code for IGG for baseline PP.
* 060906 dbb Add 06q3e, 06q3X, M6q3e, and M6q3X for IVS quarterly
*            solutions (EOPS).
* 060928 dbb Add gsfint18 for GSFC EOPI.
* 061002 dbb Add aus2006b for CRF.
* 061116 dbb Add usn2006c for USNO EOPS and EOPI.
* 061117 dbb Add 2006c for BKG TRF and CRF.
* 061201 dbb Add 06q4e and 07q1e for IVS quarterly solutions (EOPS).
* 061201 dbb Add 07r1e for IVS combined rapid solutions (EOPS).
* 061204 dbb Add INT05 for BKG EOPI.
* 061205 dbb Add 00008 for BKG EOPS.
* 061206 dbb Add d0003 for BKG DSNX.
* 061208 dbb Add DSNX code for DGFI d0003.
* 061220 dbb Add 06q4X, M6q4e and M6q4X for IVS quarterly solutions
*            (EOPS).
* 061228 dbb Add 2007a and 2007b for GSF EOPS and GSF TRF.
* 061228 dbb Add gsfint19 for GSFC EOPI.
* 070108 dbb Add 2006d for SHA TRF and d0001 for SHA DSNX.
* 070116 dbb Add 2006a for CGS EOPS, TRF, and CRF.
* 070116 dbb Add 2007a for IAA EOPS, BL, TRO and TRL.
* 070116 dbb Add d0001 for IAA DSNX.
* 070307 dbb Add 2007a for USNO EOPS and EOPI.
* 070307 dbb Add d07it for USNO DSNX.
* 070308 dbb Add d0002 for IVS DSNX.
* 070323 dbb Add gsfint20 for GSFC EOPI.
* 070323 dbb Add gsf2007c for GSFC TRF and EOPS.
* 070326 dbb Add DSNX code for DGFI d0004.
* 070327 dbb Add 2007a for BKG TRF and CRF.
* 070329 dbb Add 2007a for OPA EOPS, TRF and CRF.
* 070329 dbb Add 07q2e for IVS quarterly solution for EOPS.
* 070507 dbb Add 2007b for OPA EOPS.
* 070511 dbb Add 2007a for AUS CRF.
* 070518 dbb Add 2007a for IAA TRF and CRF.
* 070518 dbb Add 2007a for DSNX of IVS, AUS, USN, GSF, IAA, BKG,
*            CGS, MAO, DGF, SHA.
* 070522 vth Add int06 for BKG EOPI.
* 070531 dbb Add 00009 for BKG TRL.
* 070608 dbb Add 2007c for GSF DSNX.
* 070615 dbb Add 00009 for BKG EOPS.
* 070709 dbb Add 00010 for BKG EOPS and TRL; INT07 for BKG EOPI;
*            and 2007b for BKG DSNX, TRF and CRF.
* 070709 dbb Add 07q3e for IVS quarterly solution for EOPS.
* 070713 dbb Add 2007c for OPA EOPS.
* 070723 dbb Add 2007b for USNO DSNX, EOPS and EOPI.
* 070724 dbb Add 2007d for GSF EOPS and TRF.
* 070724 dbb Add int21 and int22 for GSF EOPI.
* 070814 dbb Add 2007c for GSF DSNI (daily intensive SINEX).
* 070823 dbb Add 2007c for BKG DSNI (daily intensive SINEX).
* 071007 dbb Add 07q4e for IVS quarterly solution for EOPS.
* 071010 dbb Add 2007d for OPA EOPS.
* 071101 dbb Add 2007c for BKG TRF and CRF.
* 071107 dbb Add 07r1X for IVS rapid solution for EOPS and
*                07q1X for IVS quarterly solution for EOPS.
* 071107 dbb Add 07r4e, 07r4X for IVS rapid solution for EOPS and
*                07q4X for IVS quarterly solution for EOPS.
* 071115 dbb Add 2007c for USNO EOPS and EOPI.
* 071116 dbb Add 2007d for GSF DSNI (daily intensive SINEX).
* 071116 dbb Add 2007d for GSF DSNX.
* 071127 dbb Add int22 for GSF DSNI (daily intensive SINEX).
* 080116 dbb Add 2008a for OPA EOPS.
* 080122 dbb Add 2008a for OPA DSNX.
* 080204 dbb Add 2007b for IAA TRF and CRF.
* 080211 dbb Add 08q1e, 08q1X for IVS quarterly solution for EOPS.
* 080214 dbb Add aus00007 for EOPS.
* 080228 dbb Add 2008a for USNO EOPS and EOPI.
* 080401 dbb Add 2008a for IGG long-term troposphere.
* 080402 dbb Add 2007a for IAA DSNI (daily intensive SINEX).
* 080403 dbb Add 2008a for BKG TRF and CRF.
* 080414 dbb Add 2008b for OPA EOPS and DSNX.
* 080501 dbb Add 2008a for IAA DSNX and DSNI.
* 080516 dbb Add 2007a for CGS EOPS, TRF, and CRF.
* 080520 dbb Add 08q2e, 08q2X for IVS quarterly solution for EOPS.
* 080604 dbb Add int23 for GSF EOPI and 2008a for GSF EOPS.
* 080617 dbb Add int23 for GSF DSNI and 2008a for GSF DSNX.
* 080717 dbb Add 2008b for BKG TRF and CRF.
* 080725 dbb Add spu00004 for EOPS.
* 080728 dbb Add 2008c for OPA EOPS and DSNX.
* 080729 dbb Add 08q3e, 08q3X for IVS quarterly solution for EOPS.
* 080822 dbb Add 2008a for DGF DSNX.
* 081016 dbb Add 2008d for OPA EOPS, CRF, and DSNX.
* 081107 dbb Add 2008a for IAA TRF and CRF.
* 081121 dbb Add 2008a for BKG DSNX and 00011 for BKG EOPS.
* 081201 dbb Add 2008c for BKG TRF and CRF.
* 081201 dbb Add 00011 for BKG TRL.
* 090105 dbb Add 08q4e, 08q4X for IVS quarterly solution for EOPS.
* 090113 dbb Add 2009a for DGF DSNX.
* 090115 dbb Add 2009a for OPA EOPS.
* 090116 dbb Add 2009a for OPA DSNX.
* 090503 dbb Add 2009a for BKG TRF, CRF, DSNX, and DSNI.
* 090503 dbb Add 00012 for BKG EOPS and TRL.
* 090503 dbb Add INT08 for BKG EOPI.
* 090503 dbb Add 2009b for OPA EOPS and CRF.
* 090505 dbb Add 2008a for CGS EOPS, TRF, and CRF.
* 090518 dbb Add 2009a for INA TRL. (INA is the new 3-letter code used for
*            the Istituto di Radioastronomia INAF replacing CNR)
* 090527 dbb Add 2009a for IAA TRF and CRF.
* 090628 dbb Add 09q2e, 09q2X for IVS quarterly solution for EOPS.
* 090707 dbb Add DGF to TRO.
* 090707 dbb Add 2009a for DGF TRL.
* 090922 dbb Add 09q3e, 09q3X for IVS quarterly solution for EOPS.
* 090922 dbb Add 2009c for IVS DSNX.
* 091009 dbb Add INA to TRO.
* 091026 dbb Add int24 for GSF EOPI and DSNI, and 2009a for GSF EOPS and DSNX.
* 091124 dbb Add 2009i for OPA EOPI and DSNI.
* 100115 dbb Add 2010a for OPA EOPS, DSNX, CRF, EOPI, and DSNI.
* 100115 dbb Add 2010a for IAA EOPS, EOPI, DSNX, DSNI, BL, TRO, and TRL.
* 100118 dbb Change 2010a to 2010i for OPA EOPI and DSNI.
* 100125 dbb Add 2010a for AUS CRF.
* 100203 dbb Add 2010a for USN EOPS and EOPI.
* 100330 dbb Add 2009a for CGS EOPS, TRF, and CRF.
* 100504 dbb Add 2010b for OPA EOPS and CRF.
* 100507 dbb Add 2010a for GSF EOPS and EOXY.
* 100512 dbb Add 2010a for GSF DSNX.
* 100521 dbb Add 2010a for GSF EOPI and DSNI.
* 100630 dbb Add 2010a for DGF DSNI.
* 100706 dbb Add 2010c for OPA EOPS, DSNX, and CRF.
* 100901 dbb Add 00013 for BKG EOPS, EOXY, and TRL.
*            Add INT09 for BKG EOPI.
*            Add 2010a for BKG DSNX and DSNI.
* 100929 dbb Add 2010a for PUL EOPI.
* 101014 dbb Add 2010d for OPA EOPS and CRF.
* 101109 dbb Add 2010a for BKG TRF and CRF.
* 110107 dbb Add 2011a for GSI EOPI.
* 110203 dbb Add 2011a for AUS CRF.
* 110405 dbb Add 2011b for SHA TRF.
* 110411 dbb Add 2011b for SHA EOPS.
* 110413 dbb Add 2011a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 110420 dbb Add 2011a for OPA EOPS, DSNX, and CRF.
* 110420 dbb Add 2011i for OPA EOPI and DSNI.
* 110505 dbb Add 2011a for USN EOPI, EOPS, EOXY.
* 110517 dbb Add 2011j for OPA EOPI and DSNI.
* 110624 dbb Add 2011c for SHA EOPS and TRF.
* 110825 dbb Add 2010a for CGS EOPS, TRF, and CRF.
* 111005 dbb Add 2011a for BKG TRF and CRF.
* 111010 dbb Add 2011d for SHA EOPS and TRF.
* 111110 dbb Add 2011b for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 111201 dbb Add 2011b for AUS CRF.
* 120209 dbb Add 2012a for GSI EOPI.
* 120209 dbb Add 2012a for OPA EOPS, DSNX, and CRF.
* 120209 dbb Add 2012b for OPA EOPS and CRF.
* 120209 dbb Add int2a for GSI EOPI.
* 120402 dbb Add 11q4e, 11q4X for IVS quarterly solution for EOPS.
* 120501 dbb Add 2012a for USN EOPI, EOPS, EOXY, and DSNX.
* 120604 dbb Add 2012a and 2012b for SHA EOPS and TRF.
* 120606 dbb Add 2012a for CGS EOPS, TRF, and CRF.
* 120709 dbb Add 2012a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 120907 dbb Add 12q1e, 12q1X for IVS quarterly solution for EOPS.
* 120925 dbb Add 2012a and 2012b for AUS CRF.
* 120927 dbb Add 2011a and 2012a for IAA TRF and CRF.
* 121017 dbb Add 2012b for USN EOPI, EOPS, EOXY, and DSNX.
* 121017 dbb Add 2012a for BKG TRF and CRF.
* 121119 dbb Add 2012c for SHA EOPS, TRF, and CRF.
* 130125 dbb Add 12q2e, 12q2X for IVS quarterly solution for EOPS.
*            Add 12q3e, 12q3X for IVS quarterly solution for EOPS.
* 130201 dbb Add 2013a for OPA EOPS, DSNX, and CRF.
* 130328 dbb Add 12q4e, 12q4X for IVS quarterly solution for EOPS.
* 130403 dbb Add int2b for GSI EOPI.
* 130502 dbb Add 13q1e, 13q1X for IVS quarterly solution for EOPS.
* 130802 dbb Add 13q2e, 13q2X for IVS quarterly solution for EOPS.
* 131025 dbb Add 13q3e, 13q3X for IVS quarterly solution for EOPS.
* 131108 dbb Add 2013a for BKG TRF and CRF.
* 131114 dbb Add 2013a for AUS CRF.
* 131217 dbb Add 2013a for CGS EOPS, TRF, and CRF.
* 140116 dbb Add ITRF 2013 submission block.
* 140212 dbb Add 2013a for IAA for the ITRF 2013 submission.
* 140218 dbb Add 13q4e, 13q4X for IVS quarterly solution for EOPS.
* 140225 dbb Add 2013a for VIE for the ITRF 2013 submission.
* 140226 dbb Add 2013a for GFZ for the ITRF 2013 submission.
* 140401 dbb Add 2013a for AUS for the ITRF 2013 submission.
* 140421 dbb Add 2014a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 140428 dbb Add 2013a for SHA for the ITRF 2013 submission.
* 140516 dbb Add 2014a for USN EOPI, EOPS, EOXY, and DSNX.
* 140516 dbb Add 2014a for OPA EOPS, DSNX, and CRF.
* 140516 dbb Add 2014i for OPA EOPI and DSNI.
* 140522 dbb Add 2013a for OPA for the ITRF 2013 submission.
* 140528 dbb Add 2014a for AUS CRF.
* 140605 dbb Add 2014a for USN DSNI.
* 140605 dbb Add 2014a for IAA TRF and CRF.
* 140605 dbb Add 2014a for BKG for the ITRF 2013 submission.
* 140626 dbb Add 2014a for USN for the ITRF 2013 submission.
* 140703 dbb Add INT14 for BKG EOPI and 2014a for BKG DSNI.
* 140707 dbb Add 2014a for GFZ DSNX.
* 140714 dbb Add 2014a for BKG DSNX and 00014 for BKG EOPS, EOXY, and TRL.
* 140718 dbb Add 14q1e, 14q1X for IVS quarterly solution for EOPS.
* 140819 dbb Add 2013b for IAA for the ITRF 2013 submission.
* 141103 dbb Add 14q2e, 14q2X for IVS quarterly solution for EOPS.
* 141114 dbb Add 2014a for BKG TRF and CRF.
* 141114 dbb Add 2014a for CGS DSNX.
* 141204 dbb Add 2014a for NMA for the ITRF 2013 submission.
* 141210 dbb Add 2014a for VIE long-term troposphere.
* 141219 dbb Add 2014a for VIE troposphere product.
* 141223 dbb Add 2014a for CGS EOPS, TRF, and CRF.
* 150112 dbb Add 2014b for CGS for the ITRF 2013 submission.
* 150306 dbb Add 2015a for AUS CRF.
* 150330 dbb Add 2014a for IVS for the ITRF 2013 combined solution.
* 150430 dbb Add 2015a for USN EOPI, EOPS, EOXY, DSNI, and DSNX.
* 150504 dbb Add 2015b for AUS CRF.
* 150610 dbb Add 2015a for OPA EOPS, DSNX, and CRF.
* 150610 dbb Add 2015i for OPA EOPI and DSNI.
* 150717 dbb Add 2015x for OPA DSNX.
* 150917 dbb Add 2015a for USN CRF.
* 151026 dbb Add 2015c for AUS CRF.
* 151102 dbb Add 15q2e, 15q2X for IVS quarterly solution for EOPS.
* 151110 dbb Add 2015a for BKG TRF and CRF.
* 151123 dbb Add 2015a for SPU EOPS.
* 151125 dbb Add 2015b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 151202 dbb Add 2015a for ASI EOPS, TRF, and CRF (ASI is former CGS).
* 160129 dbb Add 2016a for AUS CRF.
* 160526 dbb Add 2016b for AUS CRF.
* 160922 dbb Add 2016a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 161028 dbb Add 2016a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 161108 dbb Add 2016a for BKG TRF and CRF.
* 170103 dbb Add 2016a for ASI EOPS, TRF, and CRF.
* 170110 dbb Add 2017a for DGF DSNX and DSNI.
* 170127 dbb Add 2017a for GFZ DSNX.
* 170208 dbb Add 2017a for IVS DSNX.
* 170302 dbb Add 2017a for IAA EOPS, EOXY, EOPI, TRF, CRF, DSNX, and DSNI.
* 170411 dbb Add 2017a for OPA EOPS, DSNX, and CRF.
* 170411 dbb Add 2017i for OPA EOPI and DSNI.
* 170419 dbb Add 2017a for AUS CRF.
* 170510 dbb Add 2017a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 170512 dbb Add 2017a for ASI DSNX, EOPS, TRF, and CRF.
* 170831 dbb Add 2017b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 171002 dbb Add 2017b for AUS CRF.
* 171114 dbb Add 2017a for BKG TRF and CRF.
* 171211 dbb Add int2c for GSI EOPI.
* 171219 dbb Add 14r1X, 14r1e for IVS rapid solution for EOPS.
* 180116 dbb Add 2018a for OPA EOPS, DSNX, and CRF.
* 180116 dbb Add 2018i for OPA EOPI and DSNI.
* 180116 dbb Add 17q3e, 17q3X and 17q4e, 17q4X for IVS quarterly solution for EOPS.
* 180223 dbb Add 2018a for DGF DSNX and DSNI.
* 180312 dbb Add 2018a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 180726 dbb Add 2018a for AUS CRF.
* 180807 dbb Add 2018b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 181011 dbb Add 18q2e, 18q2X and 18q3e, 18q3X for IVS quarterly solution for EOPS.
* 181207 dbb Add 2018a for ASI DSNX, EOPS, TRF, and CRF.
* 190206 dbb Add 2019a for OPA EOPS, DSNX, and CRF.
* 190206 dbb Add 2019i for OPA EOPI and DSNI.
* 190206 dbb Add 2019a for NMA EOPS and DSNX.
* 190403 dbb Add 2019a for IAA EOPS, EOXY, EOPI, TRF, CRF, DSNX, and DSNI.
* 190619 dbb Add 2019a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 190702 dbb Add 2019c for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 190802 dbb Add 2019a for AUS CRF.
* 190807 dbb Add 18q4e, 18q4X and 19q2e, 19q2X for IVS quarterly solution for EOPS.
* 190911 dbb Add 2019a for ASI DSNX, EOPS, TRF, and CRF.
* 191031 dbb Add 2019b for AUS CRF.
* 191031 dbb Add 19q3e, 19q3X and 19q4e, 19q4X for IVS quarterly solution for EOPS.
* 191217 dbb Add 2019a for VIE DSNX.
* 191217 dbb Add 2019d for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 191217 dbb Add 2020a for DGF DSNX and DSNI.
* 200121 dbb Add 2020a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 200121 dbb Add 2020a for IGE EOPS and DSNX.
* 200131 dbb Add 2020a for IVS DSNX.
* 200219 dbb Add 2019a for GFZ DSNX.
* 200219 dbb Add 2020a for VIE DSNX.
* 200414 dbb Add 2020a for AUS CRF.
* 200414 dbb Add 2020a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 200527 dbb Add 2020b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 200624 dbb Add 2020a for BKG DSNX.
* 200803 dbb Add 2020b for GFZ DSNX.
* 200811 dbb Add 2020a for BKG EOPI and DSNI.
* 200820 dbb Add 2020t for OPA DSNX.
* 200923 dbb Add 2020a for OSO DSNX.
* 200930 dbb Add 2020a for NMA EOPS and DSNX.
* 201023 dbb Add 2020a for BKG EOPS and EOXY.
* 201118 dbb Add 20q2e, 20q2X for IVS quarterly solution for EOPS.
* 201127 dbb Add 2020a for ASI DSNX, EOPS, TRF, and CRF.
* 201127 dbb Add 2020a for BKG TRL.
* 201127 dbb Add 2020b, 2020c for VIE DSNX.
* 201207 dbb Add 2020b for AUS CRF.
* 210106 dbb Add 20r1e, 20r1X for IVS rapid solution for EOPS.
* 210108 dbb Add 2020c for USN DSNX.
* 210108 dbb Add 2020d for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 210113 dbb Add 2021a for IAA EOPS, EOXY, EOPI, TRF, CRF, DSNX, and DSNI.
* 210202 dbb Add 2021a for OPA EOPS, DSNX, and CRF.
* 210202 dbb Add 2021i for OPA EOPI and DSNI.
* 210414 dbb Add 2021a for VIE DSNX.
* 210510 dbb Add 2021a for AUS CRF.
* 210603 dbb Reorganized entries. Removed obsolete blocks (e.g., pilot).
* 210609 dbb Add 2021b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 210712 dbb Add 2021a for BKG CRF.
* 210728 dbb Add 2021a for VIE DSNI.
* 210820 dbb Add 2019a for GFZ EOXY.
* 211109 dbb Add 2021a for BKG TRF.
* 211112 dbb Add 2021b for AUS CRF.
* 211117 dbb Add 2021c for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 211215 dbb Add 2021a for ASI DSNX, EOPS, TRF, and CRF.
* 220316 dbb Add 2022a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 220421 dbb Add 2022a for VIE DSNI, DSNX, EOPI, and EOXY.
* 220421 dbb Add 21q4e, 21q4X for IVS quarterly solution for EOPS.
* 220421 dbb Add 2020b, 2021d for IVS combined TRF.
* 220510 dbb Add 2021d for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 220510 dbb Add 2022a for AUS CRF.
* 220621 dbb Add 2022a for BKG DSNX.
* 220621 dbb Add 2022b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 220822 dbb Add 2022a for GFZ DSNX.
* 220915 dbb Add 2022a for BKG DSNI, EOPI, EOPS, EOXY, and TRL.
* 220927 dbb Add 2022a for ASI DSNX, EOPS, EOXY, TRF, and CRF.
* 221012 mpb Add 2022c for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 221024 dbb Add 2022a for BKG TRF and CRF.
* 221024 dbb Add 22q3e, 22q3X for IVS quarterly solution for EOPS.
* 221024 dbb Add 22q4e, 22q4X for IVS quarterly solution for EOPS.
* 221024 dbb Add 2022c, 2022d for IVS combined TRF.
* 221117 dbb Add 2022b for VIE DSNI, DSNX, EOPI, and EOXY.
* 221125 dbb Add 2022b for AUS CRF.
* 221208 dbb Add 2022d for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 221208 dbb Add 2022a for UAV EOPS and DSNX.
* 230126 dbb Add 2023a for VIE DSNI, DSNX, EOPI, and EOXY.
* 230126 dbb Add 2023a for NMA EOPS and DSNX.
* 230126 dbb Add 2023a for DGF DSNX and DSNI.
* 230126 dbb Add 2023a for BKG DSNX, DSNI, EOPI, EOPS, EOXY, and TRL.
* 230213 dbb Add 2023a for IGE EOPS and DSNX.
* 230213 dbb Add 2023a for GSF EOPS, EOXY, DSNX, EOPI, and DSNI.
* 230216 dbb Add 2023a for ASI DSNX, EOPS, EOXY, TRF, and CRF.
* 230222 dbb Add 2023a for OSO DSNX.
* 230324 dbb Add 2023a for IVS rapid solution for EOPS.
* 230324 dbb Add 23q1e, 23q1X for IVS quarterly solution for EOPS.
* 230324 dbb Add 2023a for IVS DSNX.
* 230324 dbb Add 2023a for IVS combined TRF.
* 230328 dbb Add 2023a for IVS rapid solution for EOXY.
* 230424 dbb Add 2023a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 230424 dbb Add 2022a for GFZ EOXY.
* 230424 dbb Add 2023a for OPA EOPS, DSNX, and CRF.
* 230607 dbb Add 2023a for GSI EOPI.
* 230710 dbb Rename 2023a to int2d for GSI EOPI.
* 230713 dbb Add 2023b for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 230925 dbb Add 2023b for DGF DSNX and DSNI.
* 230925 dbb Add 2023b for VIE DSNI, DSNX, EOPI, and EOXY.
* 230925 dbb Add 2023b for NMA EOPS and DSNX.
* 230927 dbb Add 2023b for BKG DSNX, DSNI, EOPI, EOPS, and EOXY.
* 230927 dbb Add 2023a, 2023b for UAV EOPS and DSNX.
* 230928 dbb Add 2023b for IGE EOPS and DSNX.
* 231006 dbb Add 2023b for IVS DSNX.
* 231012 dbb Add 2023b for BKG TRF and CRF.
* 231103 dbb Add 2023b for ASI DSNX.
* 231103 dbb Add 23q2e, 23q2X for IVS quarterly solution for EOPS.
* 231103 dbb Add 23q3e, 23q3X for IVS quarterly solution for EOPS.
* 231103 dbb Add 23q4e, 23q4X for IVS quarterly solution for EOPS.
* 231103 dbb Add 2023b, 2023c, 2023d for IVS combined TRF.
* 231107 dbb Add 2024a for OPA EOPS, DSNX, and CRF.
* 231107 dbb Add 2024i for OPA EOPI and DSNI.
* 231121 dbb Add 2023c for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 240221 dbb Add 2024a for AUS CRF.
* 240416 dbb Add 2024a for DGF EOPI and DSNI.
* 240514 dbb Add 2024a for GFZ DSNX and EOXY.
* 240528 dbb Add 2024a for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 240612 dbb Add 2023b for BKG TRL.
* 240710 dbb Add 24q1e, 24q1X, 24q2e, 24q2X for IVS quarterly solution for EOPS.
* 240710 dbb Add 2024b for IVS combined TRF.
* 240731 dbb Add 2023a for AUS DSNX and EOXY.
* 240806 dbb Add 2024b for AUS CRF.
* 241031 dbb Add 202ba for USN CRF, EOPI, EOPS, EOXY, DSNI, and DSNX.
* 241112 dbb Add 24q3e, 24q3X, 24q4e, 24q4X for IVS quarterly solution for EOPS.
* 241112 dbb Add 2024d for IVS combined TRF.
* 241112 dbb Add 2024a for ASI DSNX, EOPS, EOXY, TRF, and CRF.
* 250108 dbb Add 2025a for VIE DSNI, DSNX, EOPI, and EOXY.
* 250202 dbb Add 2025a for AUS CRF.
* 250213 dbb Add 2023c for DGF DSNX.
*
* Fields are separated by | characters.
* Field 1. Analysis Center name, any text.
* Field 2. 3-letter code, used in file names. Must be exactly
*          three characters.
* Field 3. Type, one of CRF, TRF, EOPI, EOPS, SNX.
* Field 4. Space-delimited list of 5-letter codes for valid solutions 
*          from this Analysis Center. Submitted analysis products will 
*          not be accepted without a valid solution description file.
*          Each solution code must be exactly 5 characters.
* Document Solution files are not accepted unless the corresponding
*          documentation file already exists on the Data Center.
*          Document files have the same file name as the solutions
*          with .txt appended.
*
* ac-name                     | ac-code| type |  ac-solutions
*
  IVS Combined Solution       |  IVS   | EOPS | 01001 02001 02002 
  IVS Combined Rapid Solution |  IVS   | EOPS | 02R01 03R1e 03R1X M3r1e M3r1X
  IVS Combined Rapid Solution |  IVS   | EOPS | 07r1e 07r1X 07r4e 07r4X 14r1X
  IVS Combined Rapid Solution |  IVS   | EOPS | 14r1e 20r1e 20r1X 2023a
  IVS Combined Rapid Solution |  IVS   | EOXY | 2023a
  IVS Combined Quarterly Soln |  IVS   | EOPS | 02Q03 02Q04 03Q01 03Q1E 03Q1X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 03Q2e 03Q2X 03Q3E 03Q3X 03Q4E
  IVS Combined Quarterly Soln |  IVS   | EOPS | 03Q4X 04Q1E 04Q1X 04Q2e 04Q2X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 04Q3E 04Q3X 04Q4E 04Q4X 04Q1E
  IVS Combined Quarterly Soln |  IVS   | EOPS | 04Q1X 04Q2e 04Q2X 04Q3E 04Q3X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 04Q4E 04Q4X 05Q2E 05Q2X 05Q3E
  IVS Combined Quarterly Soln |  IVS   | EOPS | 05Q3X 05Q4E 05Q4X 05Q2e 05Q2X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 05Q3e 05Q3X 05Q4e 05Q4X 06Q1e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 06Q1X 06q2e 06q2X M6q2e M6q2X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 06q3e 06q3X M6q3e M6q3X 06q4e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 06q4X M6q4e M6q4X 07q1e 07q2e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 07q3e 07q4e 07q1X 07q4X 08q1e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 08q1X 08q2e 08q2X 08q3e 08q3X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 08q4e 08q4X 09q2e 09q2X 09q3e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 09q3X 11q4e 11q4X 12q1e 12q1X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 12q2e 12q2X 12q3e 12q3X 12q4e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 12q4X 13q1e 13q1X 13q2e 13q2X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 13q3e 13q3X 13q4e 13q4X 14q1e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 14q1X 14q2e 14q2X 15q2e 15q2X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 17q3e 17q3X 17q4e 17q4X 18q2e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 18q2X 18q3e 18q3X 18q4e 18q4X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 19q2e 19q2X 19q3e 19q3X 19q4e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 19q4X 20q2e 20q2X 21q4e 21q4X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 22q3e 22q3X 22q4e 22q4X 23q1X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 23q1e 23q2X 23q2e 23q3X 23q3e
  IVS Combined Quarterly Soln |  IVS   | EOPS | 23q4X 23q4e 24q1X 24q1e 24q2X
  IVS Combined Quarterly Soln |  IVS   | EOPS | 24q2e 24q3X 24q3e 24q4X 24q4e
  IVS Combined SINEX          |  IVS   | DSNX | d0001 d04it d0002 2007a 2009c
  IVS Combined SINEX          |  IVS   | DSNX | 2017a 2020a 2023a 2023b
  IVS Combined TRF            |  IVS   | TRF  | 2020b 2021d 2022c 2022d 2023a
  IVS Combined TRF            |  IVS   | TRF  | 2023b 2023c 2023d 2024b 2024d
*
  Geoscience Australia        |  AUS   | EOPS | 00001 00002 00003 00004 00005
  Geoscience Australia        |  AUS   | EOPS | 00006 00007
  Geoscience Australia        |  AUS   | EOXY | 2023a
  Geoscience Australia        |  AUS   | EOPI | 00001
  Geoscience Australia        |  AUS   | CRF  | 2003b 2004a 2005a 2005b 2005c
  Geoscience Australia        |  AUS   | CRF  | 2006b 2007a 2010a 2011a 2011b
  Geoscience Australia        |  AUS   | CRF  | 2012a 2012b 2013a 2014a 2015a
  Geoscience Australia        |  AUS   | CRF  | 2015b 2015c 2016a 2016b 2017a
  Geoscience Australia        |  AUS   | CRF  | 2017b 2018a 2019a 2019b 2020a
  Geoscience Australia        |  AUS   | CRF  | 2020b 2021a 2021b 2022a 2022b
  Geoscience Australia        |  AUS   | CRF  | 2024a 2024b 2025a
  Geoscience Australia        |  AUS   | DSNX | d04it 2007a 2023a
*
  U. S. Naval Observatory     |  USN   | EOPI | 99004 99005 99003 2005c 2006a
  U. S. Naval Observatory     |  USN   | EOPI | 2006b 2006c 2007a 2007b 2007c
  U. S. Naval Observatory     |  USN   | EOPI | 2008a 2010a 2011a 2012a 2012b
  U. S. Naval Observatory     |  USN   | EOPI | 2014a 2015a 2015b 2016a 2017a
  U. S. Naval Observatory     |  USN   | EOPI | 2017b 2018a 2018b 2019c 2020a
  U. S. Naval Observatory     |  USN   | EOPI | 2020b 2020d 2021b 2021c 2022a
  U. S. Naval Observatory     |  USN   | EOPI | 2022b 2022c 2022d 2023a 2023b
  U. S. Naval Observatory     |  USN   | EOPI | 2023c 2024a 2024b
  U. S. Naval Observatory     |  USN   | TRF  | 99003
  U. S. Naval Observatory     |  USN   | EOPS | 2001d 2002a 2002b 2002c 2003a
  U. S. Naval Observatory     |  USN   | EOPS | 2003b 2004a 2003a 2003b 2004a
  U. S. Naval Observatory     |  USN   | EOPS | 2004b 2005a 2005b 2005c 2005a
  U. S. Naval Observatory     |  USN   | EOPS | 2005b 2005c 2006a 2006b 2006c
  U. S. Naval Observatory     |  USN   | EOPS | 2007a 2007b 2007c 2008a 2010a
  U. S. Naval Observatory     |  USN   | EOPS | 2011a 2012a 2012b 2014a 2015a
  U. S. Naval Observatory     |  USN   | EOPS | 2015b 2016a 2017a 2017b 2018a
  U. S. Naval Observatory     |  USN   | EOPS | 2018b 2019c 2020a 2020b 2020d
  U. S. Naval Observatory     |  USN   | EOPS | 2021b 2021c 2022a 2022b 2022c
  U. S. Naval Observatory     |  USN   | EOPS | 2022d 2023a 2023b 2023c 2024a
  U. S. Naval Observatory     |  USN   | EOPS | 2024b
  U. S. Naval Observatory     |  USN   | EOXY | 2011a 2012a 2012b 2014a 2015a
  U. S. Naval Observatory     |  USN   | EOXY | 2015b 2016a 2017a 2017b 2018a
  U. S. Naval Observatory     |  USN   | EOXY | 2018b 2019c 2020a 2020b 2020d
  U. S. Naval Observatory     |  USN   | EOXY | 2021b 2021c 2022a 2022b 2022c
  U. S. Naval Observatory     |  USN   | EOXY | 2022d 2023a 2023b 2023c 2024a
  U. S. Naval Observatory     |  USN   | EOXY | 2024b
  U. S. Naval Observatory     |  USN   | DSNX | d0001 d04it d05it d07it 2007a
  U. S. Naval Observatory     |  USN   | DSNX | 2007b 2012a 2012b 2014a 2014t
  U. S. Naval Observatory     |  USN   | DSNX | 2015a 2015b 2016a 2017a 2017b
  U. S. Naval Observatory     |  USN   | DSNX | 2018a 2018b 2019c 2020a 2020b
  U. S. Naval Observatory     |  USN   | DSNX | 2020c 2020d 2021b 2021c 2022a
  U. S. Naval Observatory     |  USN   | DSNX | 2022b 2022c 2022d 2023a 2023b
  U. S. Naval Observatory     |  USN   | DSNX | 2023c 2024a 2024b
  U. S. Naval Observatory     |  USN   | DSNI | 2014a 2015a 2015b 2016a 2017a
  U. S. Naval Observatory     |  USN   | DSNI | 2017b 2018a 2018b 2019c 2020a
  U. S. Naval Observatory     |  USN   | DSNI | 2020b 2020d 2021b 2021c 2022a
  U. S. Naval Observatory     |  USN   | DSNI | 2022b 2022c 2022d 2023a 2023b
  U. S. Naval Observatory     |  USN   | DSNI | 2023c 2024a 2024b
  U. S. Naval Observatory     |  USN   | CRF  | 2015a 2015b 2016a 2017a 2017b
  U. S. Naval Observatory     |  USN   | CRF  | 2018a 2018b 2019c 2020a 2020b
  U. S. Naval Observatory     |  USN   | CRF  | 2020d 2021b 2021c 2022a 2022b
  U. S. Naval Observatory     |  USN   | CRF  | 2022c 2022d 2023a 2023b 2023c
  U. S. Naval Observatory     |  USN   | CRF  | 2024a 2024b
*
  Goddard Space Flight Center |  GSF   | EOPS | 2001c 2001d 2002b 2002c 2003a
  Goddard Space Flight Center |  GSF   | EOPS | 2003b 2003c 2004a 2004b 2004d
  Goddard Space Flight Center |  GSF   | EOPS | 2004e 2005a 2005b 2005c 2005d
  Goddard Space Flight Center |  GSF   | EOPS | 2005e 2006a 2006b 2006c 2006d
  Goddard Space Flight Center |  GSF   | EOPS | 2007a 2007b 2007c 2007d 2008a
  Goddard Space Flight Center |  GSF   | EOPS | 2009a 2010a 2011a 2011b 2012a
  Goddard Space Flight Center |  GSF   | EOPS | 2014a 2016a 2019a 2019d 2020a
  Goddard Space Flight Center |  GSF   | EOPS | 2021d 2023a
  Goddard Space Flight Center |  GSF   | EOXY | 2010a 2011a 2011b 2012a 2014a
  Goddard Space Flight Center |  GSF   | EOXY | 2016a 2019a 2019d 2020a 2021d
  Goddard Space Flight Center |  GSF   | EOXY | 2023a
  Goddard Space Flight Center |  GSF   | EOPI | INT03 INT04 INT05 INT06 INT07
  Goddard Space Flight Center |  GSF   | EOPI | INT08 int09 int10 int12 int13
  Goddard Space Flight Center |  GSF   | EOPI | int14 int15 int16 int17 int18
  Goddard Space Flight Center |  GSF   | EOPI | int19 int20 int21 int22 int23
  Goddard Space Flight Center |  GSF   | EOPI | int24 2010a 2011a 2011b 2012a
  Goddard Space Flight Center |  GSF   | EOPI | 2014a 2016a 2019a 2019d 2020a
  Goddard Space Flight Center |  GSF   | EOPI | 2021d 2023a
  Goddard Space Flight Center |  GSF   | TRF  | 2000b 2001a 2001b 2002c 2003a
  Goddard Space Flight Center |  GSF   | TRF  | 2003b 2003c 2004a 2004b 2004d
  Goddard Space Flight Center |  GSF   | TRF  | 2004e 2005a 2005b 2005c 2005d
  Goddard Space Flight Center |  GSF   | TRF  | 2006a 2006b 2006c 2006d 2007a
  Goddard Space Flight Center |  GSF   | TRF  | 2007b 2007c 2007d
  Goddard Space Flight Center |  GSF   | CRF  | 2001b 2002c 2003a 2003b 2003c
  Goddard Space Flight Center |  GSF   | CRF  | 2005c 2005d
  Goddard Space Flight Center |  GSF   | DSNX | d0001 d0002 d0003 d0004 d04it
  Goddard Space Flight Center |  GSF   | DSNX | 2007a 2007c 2007d 2008a 2009a
  Goddard Space Flight Center |  GSF   | DSNX | 2010a 2011a 2011b 2012a 2014a
  Goddard Space Flight Center |  GSF   | DSNX | 2016a 2019a 2019d 2020a 2021d
  Goddard Space Flight Center |  GSF   | DSNX | 2023a
  Goddard Space Flight Center |  GSF   | DSNI | 2007c 2007d int22 int23 int24
  Goddard Space Flight Center |  GSF   | DSNI | 2010a 2011a 2011b 2012a 2014a
  Goddard Space Flight Center |  GSF   | DSNI | 2016a 2019a 2019d 2020a 2021d
  Goddard Space Flight Center |  GSF   | DSNI | 2023a
*
  Inst. of Applied Astronomy  |  IAA   | EOPS | O9907 O0106 O0201 O0301 O0307 
  Inst. of Applied Astronomy  |  IAA   | EOPS | O0411 2005a 2007a 2010a 2017a
  Inst. of Applied Astronomy  |  IAA   | EOPS | 2019a 2021a
  Inst. of Applied Astronomy  |  IAA   | EOPI | I0011 I0104 I0201 I0301 I0307
  Inst. of Applied Astronomy  |  IAA   | EOPI | I0411 2005a 2010a 2017a 2019a
  Inst. of Applied Astronomy  |  IAA   | EOPI | 2021a
  Inst. of Applied Astronomy  |  IAA   | TRF  | 2006a 2007a 2007b 2008a 2009a
  Inst. of Applied Astronomy  |  IAA   | TRF  | 2011a 2012a 2014a 2017a 2019a
  Inst. of Applied Astronomy  |  IAA   | TRF  | 2021a
  Inst. of Applied Astronomy  |  IAA   | CRF  | 2006a 2007a 2007b 2008a 2009a
  Inst. of Applied Astronomy  |  IAA   | CRF  | 2011a 2012a 2014a 2017a 2019a
  Inst. of Applied Astronomy  |  IAA   | CRF  | 2021a
  Inst. of Applied Astronomy  |  IAA   | DSNX | d0001 2007a 2008a 2010a 2017a
  Inst. of Applied Astronomy  |  IAA   | DSNX | 2019a 2021a
  Inst. of Applied Astronomy  |  IAA   | DSNI | 2007a 2008a 2010a 2017a 2019a
  Inst. of Applied Astronomy  |  IAA   | DSNI | 2021a
*
  German Federal Agency BKG   |  BKG   | EOPS | 00001 00002 00003 00004 00005
  German Federal Agency BKG   |  BKG   | EOPS | 00006 00007 00008 00009 00010
  German Federal Agency BKG   |  BKG   | EOPS | 00011 00012 00013 00014 2020a
  German Federal Agency BKG   |  BKG   | EOPS | 2022a 2023a 2023b
  German Federal Agency BKG   |  BKG   | EOXY | 00013 00014 2020a 2022a 2023a
  German Federal Agency BKG   |  BKG   | EOXY | 2023b
  German Federal Agency BKG   |  BKG   | EOPI | INT01 INT02 00003 INT03 INT04
  German Federal Agency BKG   |  BKG   | EOPI | INT05 INT06 INT07 INT08 INT09
  German Federal Agency BKG   |  BKG   | EOPI | INT14 2020a 2022a 2023a 2023b
  German Federal Agency BKG   |  BKG   | TRF  | 2002a 2002b 2003c 2003d 2004a
  German Federal Agency BKG   |  BKG   | TRF  | 2004b 2004c 2005a 2005b 2005c
  German Federal Agency BKG   |  BKG   | TRF  | 2006a 2006b 2006c 2007a 2007b
  German Federal Agency BKG   |  BKG   | TRF  | 2007c 2008a 2008b 2008c 2009a
  German Federal Agency BKG   |  BKG   | TRF  | 2010a 2011a 2012a 2013a 2014a
  German Federal Agency BKG   |  BKG   | TRF  | 2015a 2016a 2017a 2021a 2022a
  German Federal Agency BKG   |  BKG   | TRF  | 2023b
  German Federal Agency BKG   |  BKG   | CRF  | 2002b 2003c 2003d 2004a 2004b
  German Federal Agency BKG   |  BKG   | CRF  | 2004c 2005a 2005b 2005c 2006a
  German Federal Agency BKG   |  BKG   | CRF  | 2006b 2006c 2007a 2007b 2007c
  German Federal Agency BKG   |  BKG   | CRF  | 2008a 2008b 2008c 2009a 2010a
  German Federal Agency BKG   |  BKG   | CRF  | 2011a 2012a 2013a 2014a 2015a
  German Federal Agency BKG   |  BKG   | CRF  | 2016a 2017a 2021a 2022a 2023b
  German Federal Agency BKG   |  BKG   | DSNX | d0001 d0002 d0003 2007a 2007b
  German Federal Agency BKG   |  BKG   | DSNX | 2008a 2009a 2010a 2014a 2014t
  German Federal Agency BKG   |  BKG   | DSNX | 2020a 2022a 2023a 2023b
  German Federal Agency BKG   |  BKG   | DSNI | 2007c 2009a 2010a 2014a 2020a
  German Federal Agency BKG   |  BKG   | DSNI | 2022a 2023a 2023b
*
  St. Petersburg University   |  SPU   | EOPI | 99001 00001 00002 
  St. Petersburg University   |  SPU   | EOPS | 00001 00002 0002i 0002m 0003i
  St. Petersburg University   |  SPU   | EOPS | 00004 2015a
*
  Space Geodesy Center Matera |  CGS   | EOPS | 2002a 2004a 2005a 2006a 2007a
  Space Geodesy Center Matera |  CGS   | EOPS | 2008a 2009a 2010a 2012a 2013a
  Space Geodesy Center Matera |  CGS   | EOPS | 2014a
  Space Geodesy Center Matera |  CGS   | TRF  | 2002a 2004a 2005a 2006a 2007a
  Space Geodesy Center Matera |  CGS   | TRF  | 2008a 2009a 2010a 2012a 2013a
  Space Geodesy Center Matera |  CGS   | TRF  | 2014a
  Space Geodesy Center Matera |  CGS   | CRF  | 2002a 2004a 2005a 2006a 2007a
  Space Geodesy Center Matera |  CGS   | CRF  | 2008a 2009a 2010a 2012a 2013a
  Space Geodesy Center Matera |  CGS   | CRF  | 2014a
  Space Geodesy Center Matera |  CGS   | DSNX | d0001 2007a 2014a
*
  Italian Space Agency Matera |  ASI   | EOPS | 2015a 2016a 2017a 2018a 2019a
  Italian Space Agency Matera |  ASI   | EOPS | 2020a 2021a 2022a 2023a 2024a
  Italian Space Agency Matera |  ASI   | EOXY | 2022a 2023a 2024a
  Italian Space Agency Matera |  ASI   | TRF  | 2015a 2016a 2017a 2018a 2019a
  Italian Space Agency Matera |  ASI   | TRF  | 2020a 2021a 2022a 2023a 2024a
  Italian Space Agency Matera |  ASI   | CRF  | 2015a 2016a 2017a 2018a 2019a
  Italian Space Agency Matera |  ASI   | CRF  | 2020a 2021a 2022a 2023a 2024a
  Italian Space Agency Matera |  ASI   | DSNX | 2017a 2018a 2019a 2020a 2021a
  Italian Space Agency Matera |  ASI   | DSNX | 2022a 2023a 2023b 2024a
*
  Main Astronomical Obs, Kiev |  MAO   | EOPS | 2003a 2003o
  Main Astronomical Obs, Kiev |  MAO   | CRF  | 2003a
  Main Astronomical Obs, Kiev |  MAO   | TRF  | 2003a
  Main Astronomical Obs, Kiev |  MAO   | DSNX | 05it1 2007a
*
  DGFI                        |  DGF   | DSNX | d0001 d0002 d0003 d0004 2007a
  DGFI                        |  DGF   | DSNX | 2008a 2009a 2017a 2018a 2020a
  DGFI                        |  DGF   | DSNX | 2023a 2023b 2023c
  DGFI                        |  DGF   | DSNI | 2010a 2017a 2018a 2020a 2023a
  DGFI                        |  DGF   | DSNI | 2023b 2024a
  DGFI                        |  DGF   | EOPI | 2024a
*
  Shanghai Observatory        |  SHA   | EOPS | 2011b 2011c 2011d 2012a 2012b
  Shanghai Observatory        |  SHA   | EOPS | 2012c
  Shanghai Observatory        |  SHA   | TRF  | 2006d 2011b 2011c 2011d 2012a
  Shanghai Observatory        |  SHA   | TRF  | 2012b 2012c
  Shanghai Observatory        |  SHA   | TRF  | 2012c
  Shanghai Observatory        |  SHA   | DSNX | d04it d0001 2007a
*
  Paris Observatory           |  OPA   | EOPS | 2007a 2007b 2007c 2007d 2008a
  Paris Observatory           |  OPA   | EOPS | 2008b 2008c 2008d 2009a 2009b
  Paris Observatory           |  OPA   | EOPS | 2010a 2010b 2010c 2010d 2011a
  Paris Observatory           |  OPA   | EOPS | 2012a 2012b 2013a 2014a 2015a
  Paris Observatory           |  OPA   | EOPS | 2017a 2018a 2019a 2021a 2023a
  Paris Observatory           |  OPA   | EOPS | 2024a
  Paris Observatory           |  OPA   | EOPI | 2009i 2010i 2011i 2011j 2014i
  Paris Observatory           |  OPA   | EOPI | 2015i 2017i 2018i 2019i 2021i
  Paris Observatory           |  OPA   | EOPI | 2024i
  Paris Observatory           |  OPA   | CRF  | 2007a 2008d 2009b 2010a 2010b
  Paris Observatory           |  OPA   | CRF  | 2010c 2010d 2011a 2012a 2012b
  Paris Observatory           |  OPA   | CRF  | 2013a 2014a 2015a 2017a 2018a
  Paris Observatory           |  OPA   | CRF  | 2019a 2021a 2023a 2024a
  Paris Observatory           |  OPA   | TRF  | 2007a
  Paris Observatory           |  OPA   | DSNX | 2008a 2008b 2008c 2008d 2009a
  Paris Observatory           |  OPA   | DSNX | 2010a 2010c 2011a 2012a 2013a
  Paris Observatory           |  OPA   | DSNX | 2013t 2014a 2015a 2015x 2017a
  Paris Observatory           |  OPA   | DSNX | 2018a 2019a 2020t 2021a 2023a
  Paris Observatory           |  OPA   | DSNX | 2024a
  Paris Observatory           |  OPA   | DSNI | 2009i 2010i 2011i 2011j 2014i
  Paris Observatory           |  OPA   | DSNI | 2015i 2017i 2018i 2019i 2021i
  Paris Observatory           |  OPA   | DSNI | 2024i
*
  Pulkovo Observatory         |  PUL   | EOPI | 2010a
*
  Geospat. Info. Auth., Japan |  GSI   | EOPI | 2011a 2012a int2a int2b int2c
  Geospat. Info. Auth., Japan |  GSI   | EOPI | int2d
*
  GFZ Potsdam                 |  GFZ   | DSNX | 2014a 2017a 2019a 2020b 2022a
  GFZ Potsdam                 |  GFZ   | DSNX | 2024a
  GFZ Potsdam                 |  GFZ   | EOXY | 2019a 2022a 2024a
*
  Norwegian Mapping Authority |  NMA   | EOPS | 2019a 2020a 2023a 2023b
  Norwegian Mapping Authority |  NMA   | DSNX | 2019a 2020a 2023a 2023b
*
  TU Vienna                   |  VIE   | DSNX | 2019a 2020a 2020b 2020c 2021a
  TU Vienna                   |  VIE   | DSNX | 2022a 2022b 2023a 2023b 2025a
  TU Vienna                   |  VIE   | DSNI | 2021a 2022a 2022b 2023a 2023b
  TU Vienna                   |  VIE   | DSNI | 2025a
  TU Vienna                   |  VIE   | EOXY | 2022a 2022b 2023a 2023b 2025a
  TU Vienna                   |  VIE   | EOPI | 2022a 2022b 2023a 2023b 2025a
*
  Inst. Geogr. Nat. of Spain  |  IGE   | DSNX | 2020a 2023a 2023b
  Inst. Geogr. Nat. of Spain  |  IGE   | EOPS | 2020a 2023a 2023b
*
  University of Alicante      |  UAV   | DSNX | 2022a 2023a 2023b
  University of Alicante      |  UAV   | EOPS | 2022a 2023a 2023b
*
  Onsala Space Observatory    |  OSO   | DSNX | 2020a 2023a

*
* The following entries are for the Troposphere Parameters product.
* File names are of the form aaassssss.tro (aaa=AC code, sssss=session).
*
  Inst. of Applied Astronomy  |  IAA   | TRO  | 2007a 2010a
  Inst. of Applied Astronomy  |  IAO   | TRO  | 
  Goddard Space Flight Center |  GSF   | TRO  | 
  Istituto di Radioastronomia |  CNR   | TRO  | 
  Istituto di Radioastronomia |  INA   | TRO  | 
  German Federal Agency BKG   |  BKG   | TRO  | 
  Vienna Analysis Center      |  IGG   | TRO  | 
  Vienna Analysis Center      |  VIE   | TRO  | 2014a
  Centro di Geodesia Spaziale |  CGS   | TRO  | 
  Onsala Space Observatory    |  OSO   | TRO  | 
  Main Astronomical Obs       |  MAO   | TRO  |
  DGFI                        |  DGF   | TRO  | 

*
* The following entries are for the long-term Troposphere Parameters product.
* File names are of the form aaacccccssssss.trl (aaa=AC code, ccccc=solution
* code, ssssss=session).
*
  IVS Combined Solution       |  IVS   | TRL  | 2005a
  Inst. of Applied Astronomy  |  IAA   | TRL  | 2005a 2007a 2010a
  Inst. of Applied Astronomy  |  IAO   | TRL  | 2005a
  Goddard Space Flight Center |  GSF   | TRL  | 2005a
  Istituto di Radioastronomia |  CNR   | TRL  | 2005a
  Istituto di Radioastronomia |  INA   | TRL  | 2009a
  German Federal Agency BKG   |  BKG   | TRL  | 00007 00009 00010 00011 00012
  German Federal Agency BKG   |  BKG   | TRL  | 00013 00014 2020a 2022a 2023a
  German Federal Agency BKG   |  BKG   | TRL  | 2023b
  Vienna Analysis Center      |  IGG   | TRL  | 2005a 2006a 2008a
  Vienna Analysis Center      |  VIE   | TRL  | 2014a
  Centro di Geodesia Spaziale |  CGS   | TRL  | 
  Onsala Space Observatory    |  OSO   | TRL  | 
  Main Astronomical Obs       |  MAO   | TRL  | 2005a
  DGFI                        |  DGF   | TRL  | 2009a

*
* The following entries are for the IVS contribution to the ITRF 2013.
* File names are of the form ddddddddd_aaaccccc.sni_itrf2013 and
* ddddddddd_aaaccccc.snx_itrf2013. The '_itrf2013' part of the suffix
* is stripped by the submission script; 'snx' are 24-hour sessions and
* 'sni' are Intensive sessions. (ddddddddd=database name , aaa=AC code, 
* ccccc=solution code). E.g., 10AUG09XU_gsf2013a.sni_itrf2013 is a
* submission file for a Goddard Intensive solution.
*
  IVS Combined Solution       |  IVS   | DSNX_ITRF2013 | 2014a
  Geoscience Australia        |  AUS   | DSNX_ITRF2013 | 2013a
  German Federal Agency BKG   |  BKG   | DSNX_ITRF2013 | 2014a
  Centro di Geodesia Spaziale |  CGS   | DSNX_ITRF2013 | 2014b
  GFZ Potsdam                 |  GFZ   | DSNX_ITRF2013 | 2013a
  Goddard Space Flight Center |  GSF   | DSNX_ITRF2013 | 2013a
  Goddard Space Flight Center |  GSF   | DSNI_ITRF2013 | 2013a
  Norwegian Mapping Authority |  NMA   | DSNX_ITRF2013 | 2014a
  Paris Observatory           |  OPA   | DSNX_ITRF2013 | 2013a
  Inst. of Applied Astronomy  |  IAA   | DSNX_ITRF2013 | 2013a 2013b
  Shanghai Observatory        |  SHA   | DSNX_ITRF2013 | 2013a
  U. S. Naval Observatory     |  USN   | DSNX_ITRF2013 | 2014a
  Vienna Inst. of Technology  |  VIE   | DSNX_ITRF2013 | 2013a

* The following entry is for the 2000 and 2001 IERS submissions. Any
* Analysis Center may submit solution files as long as the
* field "ra00" or "ra01" appears just before the file extension. All
* submitted files are put into the ivs-iers subdirectory in
* the IVS data area.

  Analysis Centers                   |       |      | RA00 | ivs-iers
  Analysis Centers                   |       |      | RA01 | ivs-iers

* The following entry is for the second Pilot Project submissions.
* Any Analysis Center may submit its solution files to ivsincoming
* and they will be valid if the field "pp01" appears just before 
* the file extension. All submitted files are put into the 
* ivs-pp2001 subdirectory in the IVS data area.

  Analysis Centers                   |       |      | PP01 | ivs-pilot2001